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Thursday, February 24, 2005

Getting closer to the lost universe

In a previous post, I noted the little problem of modern physics -- we have lost about 95% of the universe. Can't be found anywhere.

Now, we may have found a "dark galaxy" that may contain the missing bits.

Radio astronomers may have found the first ever galaxy that is made almost entirely of dark matter. The "dark galaxy", which lies in the Virgo cluster about 50 million light years away, rotates in the same way as an ordinary galaxy but does not contain any stars (R Minchin et al. Astrophysical Journal at press).

The physicsweb article "Have we seen the first dark galaxy" describes it. The galaxy cannot be seen in the image below. That's why it is called "dark"

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